Closed zhuker closed 10 months ago
This is the actual behaviour of chrome implementation AFAIK. DD is only used when scalability modes are configured and not sent when scalability is not used.
Also, being a header extension and it has to be negotiated on the SDP by both endpoints, so any of them could decide to not enable it.
Not sure if it requires a modification on the draft though as the usage of the DD is not mandatory by the spec even in case that a SFM is in use.
Thanks for the clarification Shouldn't it say what you just said?
On Thu, Jul 1, 2021, 22:21 Sergio Garcia Murillo @.***> wrote:
This is the actual behaviour of chrome implementation AFAIK. DD is only used when scalability modes are configured and not sent when scalability is not used.
Also, being a header extension and it has to be negotiated on the SDP by both endpoints, so any of them could decide to not enable it.
Not sure if it requires a modification on the draft though as the usage of the DD is not mandatory by the spec even in case that a SFM is in use.
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Can the DD extension be omitted in absence of SFM or scalable video? If so do you think it should be clarified?